Radiant Heating

Radiant in-space heaters address an aspect of thermal comfort that no other systems do: radiant heat transfer. Like the sun’s rays or a warm fireplace, radiant heat warms directly, and the occupant or object then reradiates heat to the surrounding air. The use of radiant heating can lead to energy savings because occupants usually feel comfortable at lower temperatures in spaces that are radiantly heated. In homes, occupants are often comfortable with air temperatures several degrees Fahrenheit (F) lower than would otherwise be possible. In large warehouses, occupants working in small radiantly heated areas can be kept comfortable even though overall building temperatures may be as much as 20°F lower. In addition, some radiant heating systems make it possible for individual rooms, areas, or zones to be separately controlled, allowing comfort to be maintained at a lower average building temperature. The use of radiant heating can also reduce or eliminate the inefficiencies that result from the excessive air changes that can occur with poorly balanced forced-air heating systems. However, because radiant systems require a direct line between the heater and the person or object being heated, care must be taken to determine the best applications and locations for radiant heaters.

What Are the Options?
How to Make the Best Choice
What’s on the Horizon?
Who Are the Manufacturers?

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